Bubbles (physics) | Dimensionless numbers
The Bagnold number (Ba) is the ratio of grain collision stresses to viscous fluid stresses in a granular flow with interstitial Newtonian fluid, first identified by Ralph Alger Bagnold. The Bagnold number is defined by , where is the particle density, is the grain diameter, is the shear rate and is the dynamic viscosity of the interstitial fluid. The parameter is known as the linear concentration, and is given by , where is the solids fraction and is the maximum possible concentration (see random close packing). In flows with small Bagnold numbers (Ba < 40), viscous fluid stresses dominate grain collision stresses, and the flow is said to be in the "macro-viscous" regime. Grain collision stresses dominate at large Bagnold number (Ba > 450), which is known as the "grain-inertia" regime. A transitional regime falls between these two values. (Wikipedia).
Curiosity Rover Report (Dec. 15, 2015): First Visit to Martian Dunes
Curiosity performs the first investigation of active sand dunes on another planet. Studying the Bagnold Dunes on Mars will help scientists understand the physics of Martian dunes and how they move.
From playlist Curiosity Rover Reports
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NASA's Curiosity Mars Rover at Namib Dune (360 view)
This image of the downwind face of "Namib Dune" on Mars covers 360 degrees, including a portion of Mount Sharp on the horizon. Use the arrows in the top left, or click and drag your cursor or mouse, to move the view up/down and right/left. Important note: Not all browsers support viewing
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My entry in the #MegaFavNumbers project by James Grime and Matt Parker. The number in question is 2¹⁰²⁴, also known as 179,769,313,486,231,590,772,930,519,078,902,473,361,797,697,894,230,657,273,430,081,157,732,675,805,500,963,132,708,477,322,407,536,021,120,113,879,871,393,357,658,789,76
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Sand Dunes Shouldn’t Exist (Here’s Why They Do)
Check out Overview on @pbsterra ►► https://youtu.be/WWrb1iyCLlI We’re on PATREON! Join the community https://www.patreon.com/itsokaytobesmart ↓↓↓ More info and sources below ↓↓↓ How can sand, blown by the wind, form such intricate and beautiful patterns as ripples and dunes? The answer
From playlist Be Smart - LATEST EPISODES!
NASA's Curiosity Mars Rover at Ogunquit Beach (360 View)
This 360-degree panorama was acquired by the Mast Camera (Mastcam) on NASA's Curiosity rover looking out over part of an area called Bagnold Dunes, which stretch for miles on Mars. This location, called "Ogunquit Beach," is on the northwestern flank of lower Mount Sharp. Points of interest
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Curiosity at Martian Scenic Overlook
Curiosity Project Scientist Ashwin Vasavada gives a descriptive tour of the Mars rover's view in Gale Crater. The white-balanced scene looks back over the journey so far. The view from "Vera Rubin Ridge" looks back over buttes, dunes and other features along the route. To see where the ro
From playlist Mars
Curiosity Rover Report (August 5, 2016): Four Years on Mars
After four years on Mars, Curiosity rover and her operations team are now seasoned explorers, anxious to climb to greater heights on Mount Sharp.
From playlist Curiosity Rover Reports
Curiosity Rover Report (May 8, 2015): Rover Road Trip
Getting a head start on summer, Curiosity is planning a road trip to Logan’s Pass on Mars. Just like Earthlings, the rover relies on a highway map and takes scenic detours along the way.
From playlist Curiosity Rover Reports
Conversion Arcs and 2,916,485,648,612,232,232,816 (MegaFavNumbers)
I'm sorry. The MegaFavNumbers playlist: https://www.youtube.com/playlist?list=PLar4u0v66vIodqt3KSZPsYyuULD5meoAo
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#MegaFavNumbers - 6086555670238378989670371734243169622657830773351885970528324860512791691264
Hey, it's free publicity and I do have an interest in numbers. Besides, since when have I ever had a consistent theme on this channel? #MegaFavNumbers
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My #MegaFavNumber is 79,873,884
My #MegaFavNumber is 79,873,884 which is the first number over 1 million that is in its own location in the digits of pi
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The Secrets Underneath Jupiter's Atmosphere
This episode is sponsored by Wren, a website where you calculate your carbon footprint. Sign up to make a monthly contribution to offset your carbon footprint or support rainforest protection projects: https://www.wren.co/start/scishowspace We’ve probed some 250 kilometers into Jupiter’s
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1,010,010,101,000,011 - #MegaFavNumbers
This is my submission to the #megafavnumbers project. My number is 1010010101000011, which is prime in bases 2, 3, 4, 5, 6 and 10. I've open-sourced my code: https://bitbucket.org/Bip901/multibase-primes Clarification: by "ignoring 1" I mean ignoring base 1, since this number cannot be fo
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My MegaFavNumbers - GK's Numbers with Chained Prime Factors
#MegaFavNumbers 9890836489141547229675646151234 Chained Prime Factors {2, 23, 37, 71, 101, 131, 151, 181, 191, 193, 313, 353, 373, 383, 389} visit https://oeis.org/A308101 and https://oeis.org/A308099 for details #MegaFavNumbers
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Strategic Exploration via State Abstraction from Rich Observations - John Langford
Workshop on New Directions in Reinforcement Learning and Control Topic: Strategic Exploration via State Abstraction from Rich Observations Speaker: John Langford Affiliation: Microsoft Date: November 8, 2019 For more video please visit http://video.ias.edu
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Red Planet Rovers and Insights (live public talk)
Original air date: Jan. 10, 2019, at 7 p.m. PT (10 p.m. ET, 0300 UTC) Get the scoop on the latest missions at Mars. This lecture will bring you up to speed on all things Mars, including: The biggest dust storm in a decade, rolling (and drilling) on "Rubin Ridge," a new rover under constru
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#MegaFavNumbers: 10,904,493,600 & Fibonacci Numbers
This is my #MegaFavNumber. Link to all the #MegaFavNumbers Videos: https://www.youtube.com/watch?v=R2eQVqdUQLI&list=PLar4u0v66vIodqt3KSZPsYyuULD5meoAo Channel Links: Website: https://sites.google.com/view/pentamath Channel: https://www.youtube.com/channel/UCervsuIC9pv4eQq98hAgOZA Subscri
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